What is making swans sick?

LAKELAND - Dr. Geoffrey Gardner, a Lakeland swan expert, is facing the challenge of a lifetime. Something is killing the seabirds and swans on Long Boat Key, and he has to find out what it is.

"Our concern is that it may be coming from toxins in the waters, something coming from the dispersants that might have been used for the Gulf oil spill," Gardner told FOX 13 on Thursday.